Pronunciation: (fôr'run"ur, fōr'-, fôr-run'ur, fōr-),[key] —n. 1. predecessor; ancestor; forebear; precursor.
2. an omen, sign, or indication of something to follow; portent: The warm evenings were a forerunner of summer. 3. a person who goes or is sent in advance to announce the coming of someone or something that follows; herald; harbinger.
4. the Forerunner,John the Baptist.